We demonstrate Pb(Mg1/3Nb2/3)O3-PbTiO 3 cylinders with ∼98 100C texture along the radial direction. A giant enhancement in the magnitude of electromechanical coupling factor (k31 kh 0.60, and kl 0.7) was obtained for textured cylinder, and d31 × g31 was measured to be 6766 × 10-15 m2/N which is 3-6 times higher than that of commercial Pb(Zr,Ti)O3 compositions. The crystallographic grain orientation in the textured cylinder was visualized by electron backscatter diffraction, and the domain structure was characterized by piezoresponse force microscopy. Using these results, we explain the mechanism for this enhanced performance of radially textured piezoelectrics.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)